Quick recurring schedule summaries
Use the result as a check within this type of task, with the assumptions shown above.
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Work Hours Per Week Calculator
Calculate weekly, average monthly and yearly work hours from daily hours and work days per week.
Live editable inputs
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Formula and working
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Assumptions visible
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Inputs
Results
40 hours/week
173.33333 average hours/month at 52 weeks/year
2,080 hours/year at 52 weeks
8 hours/day across 5 days/week
Show the working
- 1. Weekly hours = 8 × 5 = 40.
- 2. Average monthly hours = 40 × 52 ÷ 12 = 173.33333.
- 3. Annual hours = 40 × 52 = 2,080.
The monthly and annual equivalents assume the same weekly schedule across all 52 weeks; vacation, holidays and leave are not removed.
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How to use this calculator
Convert a simple repeating work schedule into weekly hours, a 52-week annual total and a monthly average. This owner is for one hours-per-day × days-per-week pattern, not a day-by-day time card.
Step-by-step
- Step 1
Enter scheduled hours per workday.
- Step 2
Enter a whole number of work days per week from 0 to 7.
- Step 3
Review weekly hours plus 52-week annual and average-month equivalents.
How the result is calculated
Weekly hours = hours/day × work days/week; annual hours = weekly hours × 52; average monthly hours = annual hours ÷ 12.
Where this calculator is useful
Capacity planning before building a detailed time card
Use the result as a check within this type of task, with the assumptions shown above.
Converting daily schedules into weekly/annual hours
Use the result as a check within this type of task, with the assumptions shown above.
Common questions
Why is the monthly value an average?
It uses weekly hours × 52 ÷ 12, so it is a yearly average rather than the exact hours in a specific calendar month.
Are vacations or holidays removed?
No. The 52-week equivalent repeats the same schedule every week.
Can work days/week be fractional?
No. This owner treats work days as enabled calendar days and requires a whole number from 0 to 7.
Need a different calculation?
Use the calculator library to switch tasks when the question, unit or assumption changes.
Browse all calculatorsPlanning notes
40 hours a week is 173.33 hours a month and 2,080 a year, by convention
Multiply hours per day by work days per week to get weekly hours: 8 × 5 = 40. The monthly figure is weekly hours × 52 ÷ 12, which is 173.33 for a 40-hour week, and the yearly figure is weekly hours × 52, which is 2,080. Payroll and HR teams use these round numbers, but they assume you work every one of 52 weeks. A real calendar year, holidays and leave all move the total.
Worked example: an 8-hour, 5-day job in 2026
The 52-week convention gives 8 × 5 × 52 = 2,080 hours. The 2026 calendar has 261 weekdays, so 8 hours on every weekday is 2,088 hours. All 11 US federal holidays in 2026 fall on weekdays; taking them off leaves 250 days, or 2,000 hours. With 10 days of paid time off on top, the hours actually worked drop to 1,920. Which number is right depends on the question: 2,080 for converting a salary to an hourly rate, the lower figures for planning real capacity.
| Schedule | Hours per week | Average hours per month | Hours per year |
|---|---|---|---|
| 8 hours × 5 days | 40 | 173.33 | 2,080 |
| 10 hours × 4 days (4/10) | 40 | 173.33 | 2,080 |
| 9 hours × 5 days | 45 | 195 | 2,340 |
| 8 hours × 6 days | 48 | 208 | 2,496 |
| 7.5 hours × 5 days | 37.5 | 162.5 | 1,950 |
| 7 hours × 5 days | 35 | 151.67 | 1,820 |
| 12 hours × 3 days | 36 | 156 | 1,872 |
| 6 hours × 5 days | 30 | 130 | 1,560 |
| 4 hours × 5 days | 20 | 86.67 | 1,040 |
Useful for
- Turning an offer letter's hours per day into weekly and yearly hours before comparing salaries
- Checking whether a part-time schedule reaches a 30-hour or 130-hour-per-month threshold
- Estimating capacity for a team that works a fixed pattern such as 4/10 or 3/12
Limits and assumptions
- The monthly number is a yearly average. A real month has 20 to 23 weekdays, so the hours in one particular month can be well above or below 173.33.
- Holidays, paid time off, sick days and overtime are not removed or added. For a week where each day is different, use the Weekly Hours calculator instead.
- Work days must be a whole number from 0 to 7. A schedule of four and a half days needs the day-by-day Weekly Hours calculator.
- The figures are scheduled hours. They do not decide whether you are full time or owed overtime; that depends on your employer's policy and the law where you work.
Questions about this planning model
Is a work year really 2,080 hours?
Only by convention: 40 hours × 52 weeks. A calendar year has 52 weeks plus one or two days, and 2025, 2026 and 2027 each have 261 weekdays (2,088 hours at 8 a day), while 2028 has 260. Holidays and leave bring the hours actually worked lower.
How many working hours is 40 hours per week?
40 hours a week averages 173.33 hours a month and 2,080 hours a year at 52 weeks.
How do I convert PTO hours to days?
Divide the PTO hours by the hours in your normal workday. 40 hours is 5 days if you work 8-hour days, but 5.33 days if your days are 7.5 hours.
How many hours is a 7 to 4 shift?
7:00 AM to 4:00 PM is 9 hours on the clock. With an unpaid 1-hour lunch it is 8 paid hours, which makes 40 hours over 5 days. The Shift Hours calculator handles breaks and overnight shifts.
How many hours a week is full time?
There is no single number. For the US employer health-coverage rules, the IRS counts an employee as full time at an average of at least 30 hours a week or 130 hours a month. Many employers use 35 to 40 hours in their own policies.
When does overtime start?
Under the US Fair Labor Standards Act, covered nonexempt employees are paid at least 1.5 times their regular rate for hours over 40 in a workweek. Some states and contracts add daily limits; the Overtime calculator works out the pay.
Method/editorial reviewed 2026-10-18. The live calculator inputs and visible working remain the source of truth for the exact scenario above.
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